HTC 8x: The 8x is the best Windows Phone on the market. We love the simple interface, 4G LTE, and Beats Audio engine.

Droid RAZR MAXX HD: If you have battery issues, this is the phone for you. The RAZR MAXX HD gets users up to 32 hours of battery life. Besides having a long battery life it runs the new version of Android and packs in 4G LTE.

Galaxy S III: Samsung's flagship smartphone is one of our favorites. It's fast, looks great, takes great photos and has the latest version of Android.

AT&T has one of the fastest networks around. It's LTE network is expanding quickly, but it's still not as big as Verizon's. However, AT&T has an alternate form of 4G called HSPA+ that often gives you speeds faster than 3G.

AT&T

10/

iPhone 5: The iPhone 5 is better on AT&T than any other network because you can surf and talk at the same time. This is one of our favorite AT&T features.

Nokia Lumia 920: The Lumia 920 comes in a ton of colors, which is great if you want your device to stand out. The 4.5-inch screen looks great, and the 8 MP camera snaps excellent photos with Nokia's built-in image editing software. This is the perfect device to try out the Windows Phone experience.

Galaxy Note II: The Galaxy Note II has an enormous screen it's a perfect marriage of smartphone and tablet. The Note II is packed with the latest features like a quad-core processor and great camera. Because of the large screen Samsung has a multi-tasking feature that lets you run two apps side by side.

Steve Kovach, Business Insider

13/

T-Mobile is the smallest of the big four U.S. carriers, but it also has some of the most affordable plans.

14/

Google Nexus 4: T-Mobile is the only U.S. carrier to actually sell the Nexus 4 at a discount. The Nexus 4 is one of the best Android phones out right now. It has impeccable design, the latest version of Android, and a lightning fast processor.